Impala. 3.6l. Impala. 2.5l. LaCrosse. 3.6l. 2.5L, with pzev. With flex fuel.

Pressure Sensor

Help measure pressure changes within fuel tank
Help alert engine management computer if a leak occurs in fuel system

M.A.P Sensor

This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors

Purge Valve

Controls vapor flow from canister to engine

A.I.R Pump

Vacuum pump. Envision. Equinox, Terrain. 2.0l. Blazer. 2.5l. Malibu. 2.0l. ATS. 2.0l. Traverse. 2.0l. Helps prevent the effects of engine blow-by Assists in minimizing premature oil contamination Operates blower air direction controls for A/C and heat This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Lower Oxygen Sensor

Downstream. Envision. 2.5l. Bank 1 sen 2. Acadia. 2.5l. Lower. Regal TourX. Blazer. 2.5l. Rear. 2.0L. 2.4L. This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Detects oxygen content in the exhaust gases to help optimize emissions This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors